From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
kirill@shutemov.name, Andi Kleen <ak@linux.intel.com>,
Michal Hocko <mhocko@kernel.org>,
dave@stgolabs.net, Jan Kara <jack@suse.cz>,
Matthew Wilcox <willy@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Paul Mackerras <paulus@samba.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Will Deacon <will.deacon@arm.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
haren@linux.vnet.ibm.com,
Anshuman Khandual <khandual@linux.vnet.ibm.com>,
npiggin@gmail.com, bsingharora@gmail.com,
Tim Chen <tim.c.chen@linux.intel.com>,
linuxppc-dev@lists.ozlabs.org, "x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH v3 00/20] Speculative page faults
Date: Wed, 4 Oct 2017 08:50:49 +0200 [thread overview]
Message-ID: <670c9a22-cf5b-3fab-b2f2-a72fbd4451c8@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAADnVQLmSbLHwj9m33kpzAidJPvq3cbdnXjaew6oTLqHWrBbZQ@mail.gmail.com>
On 25/09/2017 18:27, Alexei Starovoitov wrote:
> On Mon, Sep 18, 2017 at 12:15 AM, Laurent Dufour
> <ldufour@linux.vnet.ibm.com> wrote:
>> Despite the unprovable lockdep warning raised by Sergey, I didn't get any
>> feedback on this series.
>>
>> Is there a chance to get it moved upstream ?
>
> what is the status ?
> We're eagerly looking forward for this set to land,
> since we have several use cases for tracing that
> will build on top of this set as discussed at Plumbers.
Hi Alexei,
Based on Plumber's note [1], it sounds that the use case is tied to the BPF
tracing where a call tp find_vma() call will be made on a process's context
to fetch user space's symbols.
Am I right ?
Is the find_vma() call made in the context of the process owning the mm
struct ?
Thanks,
Laurent.
[1] https://etherpad.openstack.org/p/LPC2017_Tracing)
next prev parent reply other threads:[~2017-10-04 6:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-25 16:27 [PATCH v3 00/20] Speculative page faults Alexei Starovoitov
2017-09-25 23:34 ` Andrew Morton
2017-09-28 12:17 ` Laurent Dufour
2017-09-28 12:29 ` Laurent Dufour
2017-09-28 20:38 ` Andrew Morton
2017-09-29 15:27 ` Laurent Dufour
2017-10-03 1:27 ` Michael Ellerman
2017-10-03 8:03 ` Laurent Dufour
2017-09-26 8:30 ` Laurent Dufour
2017-10-04 6:50 ` Laurent Dufour [this message]
2017-10-05 23:32 ` Alexei Starovoitov
-- strict thread matches above, loose matches on Subject: below --
2017-09-08 18:06 Laurent Dufour
2017-09-18 7:15 ` Laurent Dufour
2017-09-08 17:32 Laurent Dufour
2017-09-08 17:44 ` Laurent Dufour
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